Union wants guarantee miners won't be worse off under Thiess

The Construction, Forestry, Mining and Energy Union (CFMEU) says it wants to see a written guarantee that no worker at a South Burnett mine in southern Queensland will be worse off under the new operator.

Tarong Energy has signed a $500 million contract with Thiess, to operate the coal mine supplying the power station.

Thiess will also develop the Kunioon resource to provide a long-term coal supply to Tarong.

Greg Betts from the CFMEU says it will meet Thiess management over the coming months.

"There's still issues in respect to people up there under the old Rio Tinto thing," he said.

"There's still people in housing schemes, novated leases and all those sort of things that happen in a long-term mine that we've had.

"Now those things have changed, there's a lot of these issues that still need to be addressed between all the parties."